Question about Bob Mackie Mackie M-1400i Power Amplifier Car Audio Amplifier
Just stopped playing one day with 4 ohm load on it. down loaded schematics from a website but they didn't give me a complete file . I need the pcb layout to determine where temp sensor and or any other components linked to that circuit. Anyone ever encounter and repaired this problem? In great need of advice and a copy of the pcb layouts... Ron
use a larger ground wire it will stop the overload you may have to place it somewhere new but its the size of the wire that trips the overload feature too small and amp will go and protect itself (bigger ground better sound)
hope this helped
Posted on Mar 04, 2009
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Posted on Jan 02, 2017
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Sep 11, 2014 | Mackie Thump 15 TH-15A Powered Speaker
Looks like you can use minimum 2 ohms, max 16 ohms
LFC Impedance Sensing
CS Series amplifiers feature innovative circuitry for safe operation into any load. When an amplifier senses a load that
overstresses the output stage, the Load Fault Correction circuit adjusts the channel gain to a safe level. Extreme load
fault under high power levels will cause the signal to be muted for the associated channel. This method of outputstage
protection is far more effective than the standard limiting found on conventional power amplifiers. The LFC
circuit is sonically transparent in normal use and unobtrusive when activated.
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